x - всего денег
80 + 1/8x + 130 = x
210 + 1/8x = x
7/8x = 210
x = 210*8/7 = 240
Ответ: 240 рублей
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x - всего денег
80 + 1/8x + 130 = x
210 + 1/8x = x
7/8x = 210
x = 210*8/7 = 240
Ответ: 240 рублей